Hellfire II MMS Flashcards
4 Major Sections
Guidance
Warhead
Propulsion
Control
What gases are contained in the displacement gyroscope?
Nitrogen and Freon
What are the compositions in the Main Charge?
2.3kg of PBXN-109
218g Zirconium Sponge Incendiary Pellets
Label Diagram - Guidance Section
- Seeker
- Guidance Electronics Group
- Gyroscope
- Shotgun connector
Label Diagram - Warhead Section
- Incendiary Insert
- Blast Fragmentation Warhead
- ESAF
- Pneumatic Accumulator
- Thermal Battery
Label Diagram - Propulsion Section
- Control Interface Assembly
- Rocket Motor
- Spider Spacer
The Control Interface Group (CIG) provides what?
- 28 vdc missile power
- 600 psi nitrogen/freon for flight control actuators
- interfaces for squib activations
- Control signals to fin actuators
What are the Thermal Battery temperatures?
After initiation - 260 degrees C
Output - 28 volts for min 55 secs
Output termination - 204 degrees C
What type of initiator/Detonator does it use?
Exploding Foil initiator (EFI), slapped type detonator
What are the four main sections of the Hellfire?
Guidance section
Warhead section
Propulsion section
Control section
What gases power the Hellfire gyroscope?
Nitrogen and Freon
14 in a 50/50 mix 20684kpa
What provides the incendiary effect for the Hellfire?
Zirconium sponge incendiary pellets 218g
Ignite and sustain burning in combustible and ordnance to ensure destruction
What happens when the Hellfire thermal battery cools to 204˚?
Battery power is terminated when solidification of the electrolyte occurs
What type of initiator/detonator does the Electronic Safe & Fire Device (ESAF) component control?
Exploding Foil initiator (EFI), slapped type detonator
Detonation which is physically in line with the warhead explosive charge
How does the AGM 114 ESAF work
Using digital circuitry to control the exploding foil initiator and slapper type detonator which is physically in line with the warhead charge
Launcher rail thrust drives what min and max newtons?
2669 N min
3692 N max
The strakes on the guidance section are designed for what?
provide stability during flight
How long does the propulsion section motor burn for on the AGM-114?
3 seconds
What are the parts of the Gyro Optics Assembly (GOA) for the AGM-114?
Magnet
Counterbalance
Parabolic mirror.
What does the Gyro Optics Assembly (GOA) do?
Detects, filters, focuses and amplifies laser energy from the target.
What targets is the Hellfire missile designed to attack?
Ships superstructures
Deck mounted weapon systems
Light Armoured Vehicles
Trucks
Light bunkers
Buildings
What is the Electronic Safe, Arm and Fire device (ESAF) arming sequence?
Power On
Built in Test (BIT) passed
Umbilical separation
Fuse data
Safety separation have been received in the proper sequence.
What is the gas pressure within the Pneumatic accumulator and what is its output pressure?
8800psi Internal pressure
600psi Output
What does the propulsion section consist of
Case/Grain assembly
Safe-arm-igniter and rod/grain assembly
Phenolic stabilizer (spider) nozzle
Wiring harness
How long does the thermal battery provide power?
Minimum of 55 seconds.
